Improvement in steam-cylinders



@esta ,sata Wwf W www WILL IAM lNGL IS, O F' MANCHE S T ER, E NGLA-ND.'

Lette/rs Patent No. 85,( )98,"d`ated.Dees/m1161122, 1868 i IMIPROVEMENT IN' STEAMfCvYLINDERS.

lThe Schedule referred to in these Letters Patent and making part of the name.

To all whom tima/y concern Be it known that I, WILLIAM lNGLIs, of Manches# ter, in the county of Lancaster, and Kingdom of England, have invented a new and improved -Method of Constructing the Cylinders of Steam-Engines; andv I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make'and use the same, reference being had to the accompanying drawings, formingpart of this specification.

This invention has for its obj ect, by certain improve'- inents in the .constructive details, to render certain kinds of steam-engines more durable, and less likely to get out of order than they have hitherto been, whereby increased convenience, in both constructing and erecting, are secured; and

The invention consists in the construction ofthe parts as hereinafter more fully described. Figure 1 represents a steam-jacketed horizontal steam-cylinder.

Figure 2 is an en'd view, partly in section.

Figure 3 is a plan of the ,horizontal steam-jacketed cylinder. shown in fig. l, the lower half of which is shown in section.

Figure 4 repre steam-jacket.

Similar letters ofreference indicate corresponding parts.

Steam-jacketed cylinders have hitherto been cast in a single piece, as a gener-ai Irule, but, in pursuing this method, there is great risk, from the use of so many cores, and danger of cracking, from the unequal shrinkage, should hard or close7 iron be used.

In cooling, thc-inner or main cylinder is liable to become annealed, and the result has been cylinders too soft to be durable.

To remedy the difficulty, it has been attempted to bush the cylinder, by casting a'separate tube, and slipping it in, but.v such efforts have not proved successful.

The system pursued by me, and shown inthe drawings, overcomes all difiiculty, and has many advantages over all-other methods. l

This improvement is especially.. applicable to thecylinders of What are known as i Gorliss engines, many of which are constructed and .used in this country, aand consists in the inner cylindrical shell or Workingecylinder, cast separate from the steam-jacket, and

sents a steam-cylinder, Without aV making a secure steam-joint between the parts,- `by casting, in separate pieces, the ends containing thef valve-chamber.

These several parts are united by face-joints, running around the cylinder, in planes, at right angles to its aXis. The piece containing the valve-chambers for .one end is turned internally, to fit upon the en d of the-cylinder, and' it has a joint-face, .formed at right angles, to fit up against a-flange formed-on the cylinder.

The jacket is formed with a face-joint flush With' the flange on the cylinder, andthe joint of the valve chamber piece fits up` against them both, as againstja 4also very simple, and easily made.

The separate parts are securely fastened together by bolts,l as seen =in gs. 2 and 3. I am aware that casting the ends of cylinders sepa- -rate from the barrel is not, by itself, neiv; but, with valve-chambers, as'represented, itis believed to be a patentable novelty, as it overcomes what has hitherto proved a very serious difficulty.

'I'claim as new, and desire to secure by Letters Patent- The construction of the four valve-chambers, the casing B, and the inner steam-cylinder, arranged with reference to each other, and the ingressrand egressports, substantially as set forth.

The above specification of my invention signed by ine, this 11th day of August, 1868.

' "WTLLIAM INGLIS.

Witnesses:

Hormon J. A. PERCIVAL, JOHN BURNETT. 

